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Chronic knock sensor codes 850 1994

there was a problem with c70's having knock sensor codes and poor performance due to retarted ignition timming as a result. this was traced back to faulty ecu's which had to be replaced as the fault was internal. it affected the earlier engine (such as yours) but i cant remember if the service bulletin mentioned 850's or not. however if you have checked the wiring and replaced the sensor then it probably is an ecu anyway. good luck.
steve.






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New Chronic knock sensor codes [850][1994]
posted by  rbrehm  on Sat Sep 24 17:50 CST 2005 >


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